/*
 * Copyright (c) 2021, 2021, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */
package com.oracle.svm.hosted.code;

import static com.oracle.svm.util.AnnotationUtil.newAnnotationValue;

import java.util.List;

import com.oracle.svm.core.Uninterruptible;

import jdk.graal.compiler.annotation.AnnotationValue;
import jdk.vm.ci.meta.ConstantPool;
import jdk.vm.ci.meta.ResolvedJavaType;
import jdk.vm.ci.meta.Signature;

public abstract class EntryPointCallStubMethod extends NonBytecodeMethod {

    protected EntryPointCallStubMethod(String name, ResolvedJavaType declaringClass, Signature signature, ConstantPool constantPool) {
        super(name, true, declaringClass, signature, constantPool);
    }

    /**
     * Defines the {@link Uninterruptible} annotation returned for all call stub methods. The
     * synthetic graphs set up the fixed registers used for safepoint and stack overflow checks, so
     * they must be uninterruptible. The method then called by the stub does not need to be
     * uninterruptible itself.
     */
    private static final List<AnnotationValue> INJECTED_ANNOTATIONS = List.of(
                    newAnnotationValue(Uninterruptible.class,
                                    "reason", "Entry point",
                                    "calleeMustBe", false));

    @Override
    public List<AnnotationValue> getInjectedAnnotations() {
        return INJECTED_ANNOTATIONS;
    }
}
